One more Pica pageset update, now vulcanized

Last update to Pica pageset did not use vulcanizer, so load
time regressed by 75-100%. Now fixed.

TBR=ykyyip@chromium.org,tonyg@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/599673002

Cr-Commit-Position: refs/heads/master@{#296281}

tools/perf/page_sets/data/pica.json

 {
     "description": "Describes the Web Page Replay archives for a page set. Don't edit by hand! Use record_wpr for updating.", 
     "archives": {
-        "pica_010.wpr": [
+        "pica_011.wpr": [
             "http://localhost/polymer/projects/pica/"
         ]
     }

tools/perf/page_sets/data/pica_011.wpr.sha1

+8ca7faa055b54aa9f0b9cef28825d031e485b1a0
\ No newline at end of file